#include<stdio.h>
int main(void)
{
    int bin_a = 0b1010101001010010101010010101;
    int o_b = 01234567;
    int hex_c = 0xabcdef;
    unsigned int hex_d = 0xABCDEF1U;
    hex_c = 0xABCDEF;
    printf("%x", hex_d);
    return 0;
}